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http://dx.doi.org/10.14190/JRCR.2017.5.2.130

Evaluation of Tension Behavior in FRP Hybrid Bar Affected by UV Exposure and Freezing/Thawing Tests  

Yoon, Yong-Sik (Department of Civil Engineering, Hannam University)
Park, Jae-Sung (Department of Civil Engineering, Hannam University)
Park, Ki-Tae (Korea Institute of Civil Engineering and Building Technology)
Kwon, Seung-Jun (Department of Civil Engineering, Hannam University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.5, no.2, 2017 , pp. 130-136 More about this Journal
Abstract
The present work is for an evaluation of tension behavior and surface deterioration of FRP Hybrid Bar due to UV exposure and freezing/thawing(F/T) actions. For the work, FRP Hybrid Bar is subjected to UV exposure test, then F/T test is performed successively to 180 cycles. In FRP Hybrid Bar, no significant surface deterioration is evaluated after UV exposure. Tension hardening performance, a unique engineering advantage of FRP Hybrid Bar, is still maintained after F/T test. The performance in FRP Hybrid Bar exposed to UV is still effective. FRP Hybrid Bar exposed to UV have almost similar tension behavior of FRP Hybrid Bar without UV exposure. Although F/T cycles increase to 180, steel rebar, FRP Hybrid Bar, and FRP Hybrid Bar exposed to UV show no significant changes in tension behavior. In the work, UV exposure and F/T actions are evaluated to have little negative effect on surface deterioration and tensile performance in FRP Hybrid Bar, however spalling of silica coating due to impact should be considered since it affects bonding strength to outer concrete.
Keywords
Steel rebar; FRP Hybrid Bar; Tensile behavior; Freezing and thawing test; UV exposure test;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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